package com.atguigu.gulimall.coupon.service.impl;
import com.atguigu.gulimall.coupon.entity.SeckillSkuRelationEntity;
import com.atguigu.gulimall.coupon.service.SeckillSkuRelationService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.LocalTime;
import java.time.format.DateTimeFormatter;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.atguigu.common.utils.PageUtils;
import com.atguigu.common.utils.Query;
import com.atguigu.gulimall.coupon.dao.SeckillSessionDao;
import com.atguigu.gulimall.coupon.entity.SeckillSessionEntity;
import com.atguigu.gulimall.coupon.service.SeckillSessionService;
@Service("seckillSessionService")
public class SeckillSessionServiceImpl extends ServiceImpl<SeckillSessionDao, SeckillSessionEntity> implements SeckillSessionService {
    @Autowired
    private SeckillSkuRelationService seckillSkuRelationService;
    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<SeckillSessionEntity> page = this.page(
                new Query<SeckillSessionEntity>().getPage(params),
                new QueryWrapper<SeckillSessionEntity>()
        );
        return new PageUtils(page);
    }
    @Override
    public List<SeckillSessionEntity> getLatest3DaySession() {
        QueryWrapper<SeckillSessionEntity> wrapper = new QueryWrapper<>();  //  创建对象
        wrapper.between("start_time",startTime(),endTime());   //  构造条件
        List<SeckillSessionEntity> list = this.list(wrapper);  //  查询
        if (list!= null && list.size()>0) {
            List<SeckillSessionEntity> collect = list.stream().map(one -> {
                Long id = one.getId();
                List<SeckillSkuRelationEntity> seckillSkuRelationEntities = seckillSkuRelationService.list(new QueryWrapper<SeckillSkuRelationEntity>().eq("promotion_session_id", id));
                one.setRelationSkus(seckillSkuRelationEntities);
                return one;
            }).collect(Collectors.toList());
            return collect;
        }
        return null;
    }
     private String startTime(){
         LocalDate now = LocalDate.now();
         LocalTime min = LocalTime.MIN;
         LocalDateTime start = LocalDateTime.of(now, min);
         String format = start.format(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss"));
         return format;
     }
    private String endTime(){
        LocalDate now = LocalDate.now();
        LocalTime max = LocalTime.MAX;
        LocalDate localDate2 = now.plusDays(2);
        LocalDateTime end = LocalDateTime.of(localDate2, max);
        String format =end.format(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss"));
        return format;
    }
}